/* ========== Reset & Base ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-base: #0a0e1a;
  --bg-surface: rgba(18, 26, 44, 0.65);
  --bg-surface-2: rgba(13, 20, 36, 0.65);
  --bg-card: rgba(22, 31, 52, 0.55);
  --primary: #00d4ff;
  --primary-2: #6366f1;
  --accent: #ff8c42;
  --text-1: #e8edf5;
  --text-2: #98a4b8;
  --text-3: #5d6b82;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 212, 255, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --grad-primary: linear-gradient(135deg, #00d4ff 0%, #6366f1 100%);
  --grad-warm: linear-gradient(135deg, #ff8c42 0%, #ff6a00 100%);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.12);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
}
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-1);
  background: var(--bg-base);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  letter-spacing: 0.01em;
}
.bg {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 15% 15%, rgba(0, 212, 255, 0.14), transparent 35%),
    radial-gradient(ellipse at 85% 25%, rgba(99, 102, 241, 0.12), transparent 32%),
    radial-gradient(ellipse at 50% 95%, rgba(255, 140, 66, 0.06), transparent 40%),
    var(--bg-base);
  opacity: .8;
  pointer-events: none;
}
#canvas {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  display: block;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
}
.header,
.hero,
.features,
.advantages,
.howto,
.antiban,
.update,
.cta,
.article-page,
.article-detail,
.footer,
.scroll-top {
  position: relative;
  z-index: 1;
}
a { color: var(--primary); text-decoration: none; transition: color .3s; }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ========== Utility ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.section-title {
  text-align: center;
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-1);
  letter-spacing: 0.02em;
}
.section-sub {
  text-align: center;
  color: var(--text-2);
  font-size: 1.02rem;
  margin-bottom: 48px;
}
.section-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin: -22px 0 28px;
}
.action-btn {
  display: inline-block;
  min-width: 130px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
}
.buy-btn {
  color: #fff;
  background: var(--grad-warm);
  border: 1px solid transparent;
  box-shadow: 0 4px 18px rgba(255, 106, 0, 0.25);
}
.buy-btn:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 106, 0, 0.4);
}
.download-btn {
  color: var(--primary);
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.5);
}
.download-btn:hover {
  color: #fff;
  background: var(--grad-primary);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 212, 255, 0.3);
}
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--grad-primary);
  border-radius: 3px;
  margin: 14px auto 36px;
}

/* ========== Header / Nav ========== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 14, 26, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}
.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-1);
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 34px; height: 34px;
  background: var(--grad-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: #0a0e1a;
  font-weight: 900;
  box-shadow: 0 2px 12px rgba(0, 212, 255, 0.35);
}
.nav { display: flex; gap: 30px; }
.nav a {
  color: var(--text-2);
  font-size: 0.92rem;
  position: relative;
  padding: 4px 0;
  transition: color .3s;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
  transition: width .3s;
}
.nav a:hover { color: var(--text-1); }
.nav a:hover::after { width: 100%; }

/* Mobile nav toggle */
.nav-toggle { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text-1); border-radius: 2px; }

/* ========== Hero Banner (Left-Right Layout) ========== */
.hero {
  padding-top: 82px;
  padding-bottom: 50px;
  background: linear-gradient(180deg, rgba(13, 20, 36, 0.5) 0%, rgba(10, 14, 26, 0.3) 100%);
  min-height: auto;
}
.hero-inner {
  display: flex;
  gap: 30px;
  align-items: stretch;
}
.hero-carousel {
  flex: 0 1 716px;
  min-width: 0;
  max-width: 716px;
  display: flex;
  flex-direction: column;
}
.carousel {
  position: relative;
  width: 100%;
  aspect-ratio: 716 / 507;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--bg-surface-2);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}
.carousel-slides {
  position: relative;
  width: 100%;
  height: 100%;
}
.carousel-slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-2);
}
.carousel-slide.active { opacity: 1; }
.carousel-slide img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.carousel-caption {
  width: 100%;
  min-height: 92px;
  margin-top: 14px;
  padding: 18px 20px;
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.carousel-caption h2 {
  color: var(--text-1);
  font-size: 1.22rem;
  line-height: 1.3;
  margin-bottom: 6px;
}
.carousel-caption p {
  color: var(--text-2);
  font-size: 0.87rem;
  line-height: 1.7;
}
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  width: 52px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(10, 14, 26, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 5rem;
  font-weight: 300;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .3s;
}
.carousel-arrow:hover {
  background: rgba(0, 212, 255, 0.28);
  color: var(--primary);
}
.carousel-arrow.prev { left: 4px; }
.carousel-arrow.next { right: 4px; }
.carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  gap: 8px;
}
.carousel-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  border: none;
  transition: all .3s;
}
.carousel-dot.active { background: var(--primary); width: 24px; border-radius: 4px; }

/* ========== Hero Sidebar ========== */
.hero-sidebar {
  width: 340px;
  flex-shrink: 0;
  padding: 20px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.sidebar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.sidebar-links { margin-bottom: 18px; }
.sidebar-links li { margin-bottom: 6px; }
.sidebar-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--text-2);
  font-size: 0.87rem;
  line-height: 1.5;
  transition: all .2s;
}
.sidebar-links a:hover {
  background: rgba(0, 212, 255, 0.07);
  border-color: rgba(0, 212, 255, 0.18);
  color: var(--primary);
  transform: translateX(3px);
}
.link-tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  flex-shrink: 0;
}
.link-tag.feature {
  background: rgba(0, 212, 255, 0.14);
  color: var(--primary);
}
.link-tag.guide {
  background: rgba(255, 140, 66, 0.14);
  color: var(--accent);
}
.sidebar-more {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.87rem;
  color: var(--primary);
  font-weight: 500;
}
.sidebar-more:hover { color: var(--accent); }

/* ========== Features Section ========== */
.features {
  padding: 80px 0;
  background: var(--bg-surface-2);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.feature-icon {
  display: inline-block;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  margin-bottom: 16px;
  color: #fff;
}
.feature-icon.blue { background: rgba(0, 212, 255, 0.14); border: 1px solid rgba(0, 212, 255, 0.2); }
.feature-icon.orange { background: rgba(255, 140, 66, 0.14); border: 1px solid rgba(255, 140, 66, 0.2); }
.feature-icon.purple { background: rgba(99, 102, 241, 0.14); border: 1px solid rgba(99, 102, 241, 0.2); }
.feature-icon.green { background: rgba(0, 200, 120, 0.14); border: 1px solid rgba(0, 200, 120, 0.2); }
.feature-icon.red { background: rgba(255, 60, 80, 0.14); border: 1px solid rgba(255, 60, 80, 0.2); }
.feature-icon.gold { background: rgba(255, 200, 0, 0.14); border: 1px solid rgba(255, 200, 0, 0.2); }
.feature-icon h3 {
  font-size: 1.08rem;
  color: var(--text-1);
  font-weight: 600;
  line-height: 1.4;
}
.feature-card p {
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.85;
}

/* ========== Video Section ========== */
.video-section {
  padding: 80px 0;
  background: var(--bg-surface-2);
}
.video-wrapper {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  background: #000;
  transition: border-color .35s, box-shadow .35s;
}
.video-wrapper:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.video-wrapper video {
  width: 100%;
  display: block;
  outline: none;
}

/* ========== Advantages Section ========== */
.advantages {
  padding: 80px 0;
  background: var(--bg-surface);
}
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.adv-item {
  text-align: center;
  padding: 38px 20px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.adv-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.adv-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  line-height: 1.1;
}
.adv-item h3 {
  font-size: 1.05rem;
  color: var(--text-1);
  margin-bottom: 8px;
}
.adv-item p {
  color: var(--text-2);
  font-size: 0.88rem;
}

/* ========== How to Use ========== */
.howto {
  padding: 80px 0;
  background: var(--bg-surface-2);
}
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  counter-reset: step;
}
.step-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  position: relative;
  counter-increment: step;
  transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.step-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.step-card::before {
  content: counter(step);
  position: absolute;
  top: -14px; left: 24px;
  width: 32px; height: 32px;
  background: var(--grad-primary);
  border-radius: 50%;
  font-size: 0.95rem;
  font-weight: 700;
  color: #0a0e1a;
  line-height: 32px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0, 212, 255, 0.4);
}
.step-card h3 {
  font-size: 1.05rem;
  color: var(--text-1);
  margin-bottom: 10px;
  margin-top: 6px;
}
.step-card p {
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ========== Anti-ban Section ========== */
.antiban {
  padding: 80px 0;
  background: var(--bg-surface);
}
.antiban-content {
  max-width: 860px;
  margin: 0 auto;
}
.antiban-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 30px;
  margin-bottom: 20px;
  transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.antiban-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.antiban-card h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.antiban-card h3 .icon {
  width: 28px; height: 28px;
  background: rgba(255, 140, 66, 0.12);
  border: 1px solid rgba(255, 140, 66, 0.18);
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.antiban-card p, .antiban-card ul {
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.95;
}
.antiban-card ul { padding-left: 20px; }
.antiban-card ul li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 5px;
}
.antiban-card ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
}

/* ========== Update Log ========== */
.update {
  padding: 80px 0;
  background: var(--bg-surface-2);
}
.update-box {
  max-width: 750px;
  margin: 0 auto;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 38px 32px;
  text-align: center;
  transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.update-box:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.update-box .icon {
  font-size: 2.6rem;
  margin-bottom: 15px;
}
.update-box h3 {
  font-size: 1.15rem;
  color: var(--text-1);
  margin-bottom: 12px;
}
.update-box p {
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.9;
}
.update-highlight {
  color: var(--primary);
  font-weight: 600;
}

/* ========== CTA Section ========== */
.cta {
  padding: 80px 0;
  background: var(--bg-surface);
  text-align: center;
}
.cta-box {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.06) 0%, rgba(99, 102, 241, 0.05) 100%);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-radius: var(--radius);
  padding: 52px 36px;
  max-width: 750px;
  margin: 0 auto;
  transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.cta-box:hover {
  border-color: rgba(0, 212, 255, 0.22);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
.cta-box h2 {
  font-size: 1.85rem;
  color: var(--text-1);
  margin-bottom: 12px;
}
.cta-box p {
  color: var(--text-2);
  font-size: 0.96rem;
  margin-bottom: 26px;
}
.cta-btn {
  display: inline-block;
  padding: 15px 48px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--grad-warm);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
  box-shadow: 0 4px 20px rgba(255, 106, 0, 0.3);
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 106, 0, 0.45);
  color: #fff;
}

/* ========== Footer ========== */
.footer {
  padding: 36px 0;
  background: rgba(5, 8, 16, 0.9);
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer p {
  color: var(--text-3);
  font-size: 0.82rem;
  line-height: 2;
}
.footer .brand {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
}

/* ========== Scroll to top ========== */
.scroll-top {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 42px; height: 42px;
  background: var(--grad-primary);
  border: none;
  border-radius: 10px;
  color: #0a0e1a;
  font-size: 1rem;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  transform: translateY(15px);
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.35);
}
.scroll-top.show { opacity: 1; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(0, 212, 255, 0.5); }

/* ========== Animations ========== */
.animate-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(.4, 0, .2, 1), transform 0.6s cubic-bezier(.4, 0, .2, 1);
}
.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
  display: flex;
  justify-content: center;  /* 水平居中 */
  align-items: center;      /* 垂直居中 */
}

/* ========== Article List Page ========== */
.article-page {
  padding-top: 82px;
  padding-bottom: 60px;
  min-height: 100vh;
  background: var(--bg-surface);
}
.article-page-header {
  margin-bottom: 40px;
}
.article-page-header h1 {
  font-size: 1.85rem;
  color: var(--text-1);
  margin-bottom: 8px;
}
.article-page-header p {
  color: var(--text-2);
  font-size: 0.96rem;
}
.article-section-title {
  font-size: 1.1rem;
  color: var(--text-1);
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.article-list {
  margin-bottom: 40px;
}
.article-list-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all .2s;
}
.article-list-item:hover {
  background: rgba(0, 212, 255, 0.04);
}
.article-list-text {
  flex: 1;
  min-width: 0;
}
.article-list-item a {
  color: var(--text-1);
  font-size: 0.96rem;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.article-list-item a:hover { color: var(--primary); }
.article-summary {
  color: var(--text-3);
  font-size: 0.86rem;
  line-height: 1.7;
}
.article-list-item .arrow {
  color: var(--text-3);
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 4px;
}

/* ========== Article Detail Page ========== */
.article-detail {
  padding-top: 82px;
  padding-bottom: 60px;
  min-height: 100vh;
  background: var(--bg-surface);
}
.article-detail-header {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.article-detail-header .breadcrumb {
  font-size: 0.82rem;
  color: var(--text-3);
  margin-bottom: 16px;
}
.article-detail-header .breadcrumb a {
  color: var(--text-2);
}
.article-detail-header .breadcrumb a:hover { color: var(--primary); }
.article-detail-header h1 {
  font-size: 1.65rem;
  color: var(--text-1);
  margin-bottom: 10px;
}
.article-detail-header .meta {
  font-size: 0.85rem;
  color: var(--text-3);
}
.article-detail-body {
  max-width: 800px;
}
.article-detail-body h2 {
  font-size: 1.22rem;
  color: var(--text-1);
  margin: 30px 0 12px;
  padding-left: 14px;
  border-left: 3px solid var(--primary);
}
.article-detail-body h3 {
  font-size: 1.05rem;
  color: var(--text-1);
  margin: 24px 0 10px;
}
.article-detail-body p {
  color: var(--text-2);
  font-size: 0.93rem;
  line-height: 1.95;
  margin-bottom: 14px;
}
.article-detail-body ul, .article-detail-body ol {
  color: var(--text-2);
  font-size: 0.93rem;
  line-height: 2;
  margin-bottom: 14px;
  padding-left: 20px;
}
.article-detail-body ul li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 4px;
}
.article-detail-body ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
}
.article-detail-body ol {
  list-style: decimal;
}
.article-detail-body ol li {
  padding-left: 4px;
}
.article-detail-body strong {
  color: var(--primary);
  font-weight: 600;
}
.article-detail-body .tip-box {
  background: rgba(255, 140, 66, 0.05);
  border: 1px solid rgba(255, 140, 66, 0.14);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin: 20px 0;
}
.article-detail-body .tip-box .tip-title {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.article-detail-body .tip-box p {
  margin-bottom: 4px;
}
.article-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.article-nav a {
  color: var(--text-2);
  font-size: 0.9rem;
}
.article-nav a:hover { color: var(--primary); }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 62px;
    left: 12px;
    right: 12px;
    z-index: 1001;
    gap: 8px;
    padding: 14px;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 212, 255, 0.16);
    border-radius: var(--radius);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
  }
  .nav.open a {
    display: block;
    width: 100%;
    padding: 12px 14px;
    color: var(--text-1);
    font-size: 0.95rem;
    line-height: 1.4;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
  }
  .nav.open a:hover {
    color: var(--primary);
    background: rgba(0, 212, 255, 0.07);
    border-color: rgba(0, 212, 255, 0.18);
  }
  .nav.open a::after { display: none; }
  .hero-inner { flex-direction: column; }
  .hero-sidebar { width: 100%; }
  .carousel-caption {
    min-height: auto;
    padding: 14px 16px;
  }
  .carousel-caption h2 { font-size: 1rem; }
  .carousel-caption p { font-size: 0.78rem; }
  .carousel-arrow { width: 40px; height: 52%; font-size: 2.8rem; }
  .carousel-arrow.prev { left: 6px; }
  .carousel-arrow.next { right: 6px; }
  .adv-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.5rem; }
  .section-actions { flex-direction: column; align-items: center; }
  .features-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 36px 20px; }
  .cta-box h2 { font-size: 1.4rem; }
  .article-detail-header h1 { font-size: 1.3rem; }
  .article-nav { flex-direction: column; gap: 12px; }
}